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Finding the Fourth Proportional to 19,368, 26,727.84 and 10,984.50

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Solution

The fourth proportional to 19,368, 26,727.84 and 10,984.50 is: 15,158.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,368 : 26,727.84 = 10,984.50 : x
  2. Step 2: Convert to fraction form
    19,368/26,727.84 = 10,984.50/x
  3. Step 3: Cross multiply
    19,368x = 26,727.84 × 10,984.50
  4. Step 4: Simplify right side
    19,368x = 293,591,958.48
  5. Step 5: Solve for x
    x = 293,591,958.48/19,368
  6. Step 6: Final answer
    x = 15,158.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.